:root {
            --primary: #FFD700;
            --secondary: #B8860B;
            --accent: #E6B800;
            --highlight: #FFFFFF;
            --main-bg: #0F0F0F;
            --secondary-bg: #1A1A1A;
            --card-bg: #242424;
            --overlay-bg: rgba(0, 0, 0, 0.8);
            --success: #28A745;
            --error: #DC3545;
            --warning: #FFC107;
            --info: #17A2B8;
            --heading: #FFFFFF;
            --body: #E0E0E0;
            --muted: #A0A0A0;
            --on-primary: #000000;
            --border-default: #333333;
            --border-active: #FFD700;
            --border-subtle: #2A2A2A;
            --font-primary: 'Hind Siliguri', sans-serif;
            --font-secondary: 'Noto Sans Bengali', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { 
            background-color: var(--main-bg); 
            color: var(--body); 
            font-family: var(--font-primary); 
            line-height: 1.5; 
            overflow-x: hidden;
            padding-bottom: 80px;
        }
        header {
            background-color: var(--secondary-bg);
            border-bottom: 1px solid var(--border-default);
            padding: 10px 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        header .logo-section { display: flex; align-items: center; gap: 8px; }
        header .logo-section img { width: 25px; height: 25px; border-radius: 4px; }
        header .logo-section strong { font-size: 16px; font-weight: normal; color: var(--primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        header .btn-login { 
            background: transparent; border: 1px solid var(--primary); color: var(--primary);
            padding: 6px 15px; border-radius: 5px; cursor: pointer; font-family: inherit;
        }
        header .btn-register { 
            background: var(--primary); border: none; color: var(--on-primary);
            padding: 6px 15px; border-radius: 5px; cursor: pointer; font-family: inherit; font-weight: 600;
        }
        main { max-width: 1000px; margin: 0 auto; padding: 0 15px; }
        .banner-container { margin-top: 15px; border-radius: 15px; overflow: hidden; cursor: pointer; }
        .banner-container img { width: 100%; aspect-ratio: 2/1; display: block; object-fit: cover; }
        .reward-section { 
            background: linear-gradient(45deg, var(--secondary-bg), var(--card-bg));
            margin: 20px 0; padding: 25px; border-radius: 15px; text-align: center;
            border: 1px solid var(--border-active);
        }
        .reward-section h2 { color: var(--primary); margin-bottom: 10px; font-size: 24px; }
        .reward-section p { margin-bottom: 20px; color: var(--body); }
        .btn-big-register { 
            background: var(--primary); color: var(--on-primary); padding: 15px 30px; 
            border-radius: 10px; border: none; font-weight: bold; font-size: 18px; 
            cursor: pointer; transition: 0.3s; text-transform: uppercase;
        }
        .btn-big-register:hover { background: var(--highlight); transform: scale(1.05); }
        .intro-card { 
            background: var(--card-bg); padding: 25px; border-radius: 15px; 
            margin: 20px 0; border-left: 5px solid var(--primary);
        }
        .intro-card h1 { color: var(--primary); font-size: 32px; margin-bottom: 15px; }
        .intro-card p { font-size: 16px; color: var(--body); }
        .section-title { color: var(--heading); font-size: 24px; margin: 30px 0 20px; text-align: center; position: relative; }
        .section-title::after { content: ''; display: block; width: 50px; height: 3px; background: var(--primary); margin: 10px auto; }
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 30px; }
        .game-card { 
            background: var(--card-bg); border-radius: 12px; overflow: hidden; 
            text-decoration: none; transition: 0.3s; border: 1px solid var(--border-subtle); 
        }
        .game-card:hover { border-color: var(--primary); transform: translateY(-5px); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; display: block; }
        .game-card h3 { 
            padding: 12px; font-size: 16px; color: var(--heading); text-align: center; 
            white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
        }
        .payment-grid { 
            display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; 
            background: var(--secondary-bg); padding: 20px; border-radius: 15px; 
        }
        .payment-item { 
            display: flex; flex-direction: column; align-items: center; justify-content: center; 
            gap: 8px; color: var(--primary); font-size: 13px; text-align: center;
        }
        .payment-item i { font-size: 24px; }
        .guidelines-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 15px; }
        .guide-card { background: var(--card-bg); padding: 20px; border-radius: 12px; border: 1px solid var(--border-default); }
        .guide-card h3 { color: var(--primary); margin-bottom: 10px; font-size: 18px; }
        .guide-card p { font-size: 14px; color: var(--muted); }
        .review-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 15px; }
        .review-card { background: var(--secondary-bg); padding: 20px; border-radius: 15px; border: 1px solid var(--border-subtle); }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--primary); }
        .review-header .user-name { font-weight: 600; color: var(--heading); }
        .stars { color: var(--warning); font-size: 14px; margin-bottom: 10px; }
        .review-text { font-size: 14px; color: var(--body); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--muted); text-align: right; }
        .lottery-list { background: var(--card-bg); border-radius: 15px; overflow: hidden; }
        .lottery-item { 
            display: flex; justify-content: space-between; align-items: center; 
            padding: 12px 20px; border-bottom: 1px solid var(--border-subtle); 
        }
        .lottery-item:last-child { border-bottom: none; }
        .lottery-user { font-weight: 500; color: var(--body); }
        .lottery-game { font-size: 13px; color: var(--muted); }
        .lottery-win { color: var(--primary); font-weight: bold; }
        .lottery-time { font-size: 12px; color: var(--muted); }
        .provider-wall { 
            display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin: 20px 0; 
        }
        .provider-box { 
            background: linear-gradient(135deg, var(--secondary-bg), var(--card-bg));
            padding: 15px; text-align: center; border-radius: 8px; 
            color: var(--primary); font-weight: 600; border: 1px solid var(--border-default);
        }
        .faq-section { margin: 30px 0; }
        .faq-item { background: var(--card-bg); margin-bottom: 10px; border-radius: 10px; overflow: hidden; }
        .faq-question { 
            padding: 15px; color: var(--primary); font-weight: 600; cursor: pointer; 
            display: flex; justify-content: space-between; align-items: center; 
        }
        .faq-answer { padding: 0 15px 15px; font-size: 14px; color: var(--body); line-height: 1.6; }
        .security-section { 
            background: var(--secondary-bg); padding: 25px; border-radius: 15px; 
            text-align: center; margin: 30px 0; border: 1px dashed var(--primary);
        }
        .security-icons { display: flex; justify-content: center; gap: 20px; margin-bottom: 15px; font-size: 30px; color: var(--primary); }
        .security-text { font-size: 14px; color: var(--muted); margin-bottom: 10px; }
        .navigator { 
            position: fixed; bottom: 0; left: 0; right: 0; background: var(--secondary-bg); 
            display: flex; justify-content: space-around; align-items: center; 
            padding: 10px 0; border-top: 2px solid var(--primary); z-index: 2000; 
        }
        .nav-item { 
            text-decoration: none; color: var(--muted); display: flex; 
            flex-direction: column; align-items: center; font-size: 11px; gap: 4px; 
        }
        .nav-item i { font-size: 20px; }
        footer { 
            background: var(--secondary-bg); padding: 30px 15px; 
            border-top: 1px solid var(--border-default); color: var(--muted); 
        }
        footer .contact-row { 
            display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; 
            margin-bottom: 25px; align-items: center; 
        }
        footer .contact-row a { color: var(--primary); text-decoration: none; font-size: 14px; }
        footer .links-grid { 
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; 
            margin-bottom: 30px; text-align: center; 
        }
        footer .links-grid a { color: var(--muted); text-decoration: none; font-size: 13px; display: block; margin-bottom: 8px; }
        footer .copyright { text-align: center; font-size: 12px; border-top: 1px solid var(--border-subtle); padding-top: 20px; }